scholarly journals AWSQ: an approximated web server queuing algorithm for heterogeneous web server cluster

2019 ◽  
Vol 9 (3) ◽  
pp. 2083
Author(s):  
Kadiyala Ramana ◽  
M. Ponnavaikko
Keyword(s):  
Load Balancing ◽  
Web Server ◽  
Web Servers ◽  
Heavy Load ◽  
Web Based ◽  
Server Cluster ◽  
Mean Response Time ◽  
Web Server Cluster ◽  
Remaining Capacity ◽  
Web Server Clusters

With the rising popularity of web-based applications, the primary and consistent resource in the infrastructure of World Wide Web are cluster-based web servers. Overtly in dynamic contents and database driven applications, especially at heavy load circumstances, the performance handling of clusters is a solemn task. Without using efficient mechanisms, an overloaded web server cannot provide great performance. In clusters, this overloaded condition can be avoided using load balancing mechanisms by sharing the load among available web servers. The existing load balancing mechanisms which were intended to handle static contents will grieve from substantial performance deprivation under database-driven and dynamic contents. The most serviceable load balancing approaches are Web Server Queuing (WSQ), Server Content based Queue (QSC) and Remaining Capacity (RC) under specific conditions to provide better results. By Considering this, we have proposed an approximated web server Queuing mechanism for web server clusters and also proposed an analytical model for calculating the load of a web server. The requests are classified based on the service time and keep tracking the number of outstanding requests at each webserver to achieve better performance. The approximated load of each web server is used for load balancing. The investigational results illustrate the effectiveness of the proposed mechanism by improving the mean response time, throughput and drop rate of the server cluster.

scholarly journals Implementasi Arsitektur Web Server Cluster Menggunakan Single Board Computer untuk Menunjang Kebutuhan High Availability System

2021 ◽  
Vol 8 (2) ◽  
pp. 329
Author(s):  
Roisul Setiawan ◽  
Dany Primanita Kartikasari ◽  
Bayu Rahayudi
Keyword(s):  
Load Balancing ◽  
Real Time ◽  
Web Server ◽  
High Availability ◽  
Food Distribution ◽  
Functional Requirements ◽  
Time Data ◽  
Single Board Computer ◽  
Server Cluster ◽  
Web Server Cluster

<p class="Abstrak">Untuk mewujudkan ketahanan pangan, diperlukan mekanisme pengumpulan data secara real-time dari produsen  bahan pangan, pendisitribusi bahan pangan sampai pengolah bahan pangan. Namun tidak semua organisasi yang berkecimpung dalam distribusi pangan memiliki infrastruktur sistem informasi yang cukup baik. Untuk mengatasi kendala infrastruktur, penelitian ini mengusulkan untuk membangun arsitektur <em>web server cluster</em> yang dapat menunjang kebutuhan <em>high availability</em> system menggunakan single board computer.  Komponen arsitektur terdiri dari dua tier yaitu: frontend dan backend. Untuk menjamin kehandalan sistem, arsitektur  yang diusulkan didukung dengan komponen <em>load balancing</em>, mekanisme failover dan replikasi database. Sistem telah diuji berasarkan kebutuhan fungsional dan kebutuhan non-fungsional yang sudah didefinisikan sesuai kebutuhan organisasi. Dari hasil pengujian, tingkat availabilitas yang dihasilkan sebesar 95.83%.</p><p class="Abstrak"> </p><p class="Abstrak"><strong><em>Abstract</em></strong></p><p class="PreformattedText"><em>To achieve food security, a real-time data collection mechanism is needed from food producers, food distribution to food processing. However, not all organizations involved in food distribution have adequate information system infrastructure. To overcome infrastructure constraints, this study proposes to build a web server cluster architecture that can support the needs of a high availability system using a single board computer. The architectural component consists of two tiers, namely: frontend and backend. To ensure system reliability, the proposed architecture is supported by load balancing components, failover mechanisms, and database replication. The system has been tested based on functional requirements and non-functional requirements that have been defined according to organizational requirements. From the test results, the resulting availability level is 95.83%</em>.</p><p class="Abstrak"><em><br /></em></p>

Research on Request Handling Mechanism of Web Server Clusters

2014 ◽  
Vol 1022 ◽  
pp. 261-264
Author(s):  
Li Han ◽  
Xin Cao ◽  
Ya Na Zhang
Keyword(s):  
Web Server ◽  
Structural Features ◽  
Server Cluster ◽  
Cluster Architecture ◽  
Web Architecture ◽  
Depth Analysis ◽  
Web Server Cluster ◽  
Web Server Clusters ◽  
Server Clusters ◽  
System Characteristics

This paper analyzes the factors that affect the performance of Web architecture cluster system characteristics studied two typical Web server cluster architecture, proposed a new distributed Web server cluster architecture, and in-depth analysis of its structural features, this architecture is verified in terms of scalability and reliability has advantages.

scholarly journals PENGARUH IMPLEMENTASI LOAD BALANCING DAN TUNING WEB SERVER PADA RESPONSE TIME RASPBERRY PI

2019 ◽  
Vol 6 (2) ◽  
pp. 211
Author(s):  
Dodon Turianto Nugrahadi ◽  
Rudy Herteno ◽  
Muhammad Anshari
Keyword(s):  
Load Balancing ◽  
Response Time ◽  
Load Balance ◽  
Response Times ◽  
Rapid Development ◽  
Web Server ◽  
Round Robin ◽  
Raspberry Pi ◽  
Web Servers ◽  
Web Based

<div class="WordSection1"><p><em>The rapid development of technology, the increase in web-based systems and development of microcontroller device, have an impact on the ability of web servers to respond in serving client requests. This study aims to analyze load balancing methods </em><em>algoritma round robin </em><em>and </em><em>tuning that significant influence for</em><em> the response time and the number of clients who are able to be handled in serving clients on the web server with microcontroller device. From this study with Stresstool testing the response time was 2064, 2331,4 and 1869,2ms for not using load balancing and 2270, 2306,2 and 2202ms with load balancing from 700 requests served by web servers. It can be concluded that web server response times that use load balancing are smaller than web servers without load balancing. Furthermore, using tuning with the response time obtained at 3103.4ms from 1100 requests. So, with tuning can reduce response time and increase the number of requests.</em><em> With level significant level calculatio, have it khown that tuning configuration give significant effe</em><em>ct</em><em>  for </em><em>the response time and the number of clients in microcontroller.</em></p><p><strong>Keywords</strong>: <em>Web server, Raspberry, Load balancing, Response time, Stresstool.</em></p><p><em>Perkembangan </em><em>implementasi teknologi</em><em> yang pesat, seiring dengan perkembangannya </em><em>sistem </em><em>berbasis web dan perangkat mikrokontroler</em><em>, berdampak pada kemampuan web server dalam memberikan tanggap untuk melayani permintaan klien. Penelitian ini bertujuan untuk menganalisis metode load balance</em><em> </em><em>algoritma round robin dan tuning yang berpengaruh terhadap waktu tanggap dan banyaknya jumlah klien yang mampu ditangani dalam melayani klien pada web server</em><em> dengan mikrokontroler</em><em>. Dari penelitian ini </em><em>dengan pengujian Stresstool </em><em>didapatkan waktu tanggap sebesar </em>2331,4, 2064, 1869,2<em>ms untuk tanpa load balancing dan </em>2270, 2306,2<em> dan </em>2202<em>ms dengan load balancing dari </em><em>600 permintaan </em><em>yang dilayani </em><em>web server</em><em>. Dapat disimpulkan bahwa waktu tanggap web server yang menggunakan load balancing lebih kecil dibandingkan web server yang tidak menggunakan load balancing. Selanjutnya menggunakan tuning dengan waktu tanggap sebesar 3103,4ms dari 1100 permintaan. Jadi, tuning dapat mempersingkat waktu tanggap dan meningkatkan jumlah permintaan yang dilayani web server.</em><em> Selanjutnya dengan penghitungan tingkat pengaruh, bahwa </em><em>diketahui konfigurasi load balancing algoritma round robin  dan tuning memberikan pengaruh secara signifikan terhadap waktu tanggap dan jumlah permintaan pada mikrokontroler.</em></p><p><strong><em>Kata kunci</em></strong><em> : </em><em>Web server</em><em>,</em><em> Raspberry,</em><em> Load balancing, Waktu tanggap, Stresstool,</em><em> Jmeter,</em><em> Klien</em></p></div><em><br clear="all" /> </em>

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